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NAME

r.shalstab - A model for shallow landslide susceptibility.

KEYWORDS

raster, critical rainfall, landslide

SYNOPSIS

r.shalstab
r.shalstab --help
r.shalstab dem=name phy=name c_soil=name gamma=name z=name k=name [root=name] susceptibility=susceptibility critic_rain=critical rain [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

--overwrite
Allow output files to overwrite existing files
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog

Parameters:

dem=name [required]
Name of input elevation raster map
phy=name [required]
Soil friction angle (angle)
c_soil=name [required]
Soil cohesion (N/m^2)
gamma=name [required]
Soil density(Kg/m^3)
z=name [required]
Vertical thickness of soil (m)
k=name [required]
hydraulic conductivity (m/h)
root=name
Root cohesion k (N/m^2)
susceptibility=susceptibility [required]
Name for output landslide susceptibility map (from 1 to 7)
critic_rain=critical rain [required]
Name for output critical rainfall map (mm/day)

Table of contents

DESCRIPTION

r.shalstab allows to apply the algorithm developed by Montgomery and Dietrich (1994) in GRASS GIS. According to these authors, the models associate the theories of infinite slope, where the strength of soil share at the discretion of rupture of Mohr Coulomb, with the hydrological model O'Loughlin (1986), resulting in equation. Requested input and output.

The command requires some input:

The outputs are: A landslide susceptibility map (value range from 1 to 7): A map for of critical rainfall map (mm/day).

REFERENCES

Montgomery, D. R. and Dietrich, W. E.: A physically based model for the topographic control of shallow landsliding,Water Resour. Res., 30, 1153-1171, 1994.

AUTHORS

Andrea Filipello, University of Turin, Italy
Daniele Strigaro, University of Milan, Italy

SOURCE CODE

Available at: r.shalstab source code (history)

Latest change: Thu Feb 3 09:32:35 2022 in commit: f17c792f5de56c64ecfbe63ec315307872cf9d5c


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